Parts Express - The Max-X MX15-22 15" dual voice coil high excursion subwoofer from Dayton Audio combines durability, efficiency, and maximum displacement into a great looking speaker that will deliver the deepest
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Amazon.com: Kicker L7S84 L7S 8" Reinforced Subwoofer Bundle with Aluminum Protective Grille. Dual Voice Coil, 4-Ohm 450W, Square Design for More Volume and Air Displacement to Play It Loud! : Electronics
![DS18 EXL-X15.2D Subwoofer in Black - 15" Speaker, 2,500 Max Power, 1,250 RMS Power, Fiber Glass Dust Cap, Red Aluminum Frame, Dual Voice Coil 2+2 Ohm Impedance, Treated Rubber (1 Speaker), New DS18 EXL-X15.2D Subwoofer in Black - 15" Speaker, 2,500 Max Power, 1,250 RMS Power, Fiber Glass Dust Cap, Red Aluminum Frame, Dual Voice Coil 2+2 Ohm Impedance, Treated Rubber (1 Speaker), New](https://m.media-amazon.com/images/I/61ZNpm5AGRL._AC_SX522_.jpg)